Borrowing it
Nothing to install: this file belongs to plustar35/echo-reading. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/plustar35/echo-reading/main/.claude/skills/book-ingest/SKILL.mdgit clone --depth 1 https://github.com/plustar35/echo-readingWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/plustar35/echo-reading/book-ingest)<a href="https://agentmods.dev/skills/plustar35/echo-reading/book-ingest"><img src="https://agentmods.dev/badge/skills/plustar35/echo-reading/book-ingest/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/plustar35/echo-reading/book-ingest"><img src="https://agentmods.dev/badge/skills/plustar35/echo-reading/book-ingest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00181 | $0.02589 |
| Opus 5.5 | $0.00072 | $0.01036 |
| Sonnet 5.5 | $0.00036 | $0.00518 |
| Haiku 4.5 | $0.00018 | $0.00259 |
Grade C, and why
book-ingest scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
`rm -rf "$WORK"`。 The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 220 lines · 181 tokens per session scan C 77d3e95dd295
book-ingest is a skill published in the GitHub repository plustar35/echo-reading (143 stars, last pushed 4mo ago), with no licence file. It adds 181 tokens to every session and 2,589 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
book-ingest compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| book-ingestplustar35/echo-reading | Skill | 143 | 4mo ago | none | C | 181 | Claude Code |
| pptx-importTHU-MAIC/OpenMAIC | Skill | 43k | yesterday | MIT | A | 125 | Claude Code, Codex |
| annotate-paper54yyyu/zotero-mcp | Skill | 5.8k | yesterday | MIT | A | 82 | Claude Code, Codex |
| dedao-dlyann0917/dedao-dl | Skill | 918 | 10d ago | MIT | A | 134 | Claude Code, Codex |
| explorable-beamerclaesbackman/AI-research-feedback | Skill | 529 | 10d ago | MIT | A | 206 | Claude Code, Codex |
| exam-study-guideZeKaiNie/universal-examprep-skill | Skill | 370 | 11d ago | MIT | A | 113 | Claude Code, Codex |
| brief-compliance-checkflonat/flonat-research | Skill | 149 | 4d ago | MIT | A | 50 | Claude Code |